From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Clements Subject: Re: raid1 with nbd member hangs MD on SLES10 and RHEL5 Date: Thu, 14 Jun 2007 21:00:44 -0400 Message-ID: <4671E4BC.9080806@steeleye.com> References: <170fa0d20706121930g3b89ddeex8b31c8923d2a0ff6@mail.gmail.com> <18031.22930.243723.550238@notabene.brown> <170fa0d20706121959w480213bcvaba1b6881710379f@mail.gmail.com> <170fa0d20706122009h5e3db54ek7487be4940a3d780@mail.gmail.com> <18031.25581.353761.802283@notabene.brown> <170fa0d20706122130q2c77d365tbe9261bab1a5b1b@mail.gmail.com> <170fa0d20706131123q17e4fb9ehe6be25a07462cc30@mail.gmail.com> <170fa0d20706131630p6cd29aa5i8f51856780a9c691@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <170fa0d20706131630p6cd29aa5i8f51856780a9c691@mail.gmail.com> Sender: linux-raid-owner@vger.kernel.org To: Mike Snitzer Cc: Neil Brown , linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, nbd-general@lists.sourceforge.net, Herbert Xu List-Id: linux-raid.ids Mike Snitzer wrote: > Just a quick update; it is really starting to look like there is > definitely an issue with the nbd kernel driver. I booted the SLES10 > 2.6.16.46-0.12-smp kernel with maxcpus=1 to test the theory that the > nbd SMP fix that went into 2.6.16 was in some way causing this MD/NBD > hang. But it _still_ occurs with the 4-step process I outlined above. > > The nbd0 device _should_ feel an NBD_DISCONNECT because the nbd-server > is no longer running (the node it was running on was powered off)... What do you mean, nbd should _feel_ an NBD_DISCONNECT ? NBD_DISCONNECT is a manual process, not an automatic one. -- Paul